Quoting Colin King (2020-01-23 15:14:06)
> From: Colin Ian King
>
> Currently if the call to function context_get_vm_rcu returns
> a null pointer for vm then the error exit path via label err_put
> will call i915_vm_put on the null vm, causing a null pointer
> dereference. Fix this by adding a n
From: Colin Ian King
Currently if the call to function context_get_vm_rcu returns
a null pointer for vm then the error exit path via label err_put
will call i915_vm_put on the null vm, causing a null pointer
dereference. Fix this by adding a null check on vm and returning
without calling the i91
